baber/WOPTO huggingface dataset:
Patent GB-149672-A (GB)
Title: Improvements in machines for measuring areas of leather or the like
IPC: G01B5/26
Filed: 1920-07-30
Abstract: 149,672. Krupp Akt.-Ges., F. Aug. 11, 1919, [Convention date]. Surface areas, computing.-Relates to machines for measuring up areas of leather by summing up the lengths of strips into which the area is divided by a series of equidistant measuring disks or wheels, and consists in connecting the measuring-disks with loose rollers carried by a band which is fixed at one end and connected to the total wheel at the other end, the intermediate portion alternately passing under the loose pulleys and over fixed pulleys in such manner that it contacts with the rollers for the half of their circumference. On a roller A mounted in fixed bearings rest a series of measuring-wheels B each of which is freely mounted at the end of a pivoted arm b<1>. The disks are in one with pinions b<2>. Above the latter are mounted sectors C freely pivoting on a shaft c<1> carried in a step d<2> in counterbalanced levers D regulated by screws d<3>. A disk c<2> moves with the sector C and has fastened to it one end of a band c<3>. The mechanism so far is usual in these machines. According to the present invention, a band H is fixed at J and passed under loose pulleys G and over fixed pulleys K, the other end of the band after passing over a guide pulley M being attached to the total disk N which is also provided with a counterweight M<1>. Carried from the loose pulleys G are pulleys over which pass bands F the ends of which support pulleys E over which the bands C<3> are passed. When a strip of leather is passed over the wheel A, the disk B is raised and the pinion moved into gear with the sector. The band c<3> is thus wound up according to the length of the strip. An unwinding of the band H from the total pulley equal to half this amount takes place. The sum of the movements multiplied by the width of a strip may be read at P. In a modification, the band H is divided. The ends of these two strips are fixed and each strip passes around half the series of pulleys, the other ends being attached to pulleys loose on the shaft of the disk N and connected by sun-and-planet gear, the carrier for the planet gear being attached to the spindle of the disk.
Patent GB-480327-A (GB)
Title: Improvements in or relating to tufting machines
IPC: D05C15/00
Filed: 1936-08-18
Abstract: 480,327. Tufting - machines. GOODE, C. R., and ISOWITSKY, I. Aug. 18, 1936, No. 22745. [Class 112] A pile-making machine consists of a loopforming needle, a slotted loop-former, and a continuously rotating cutting wheel which is periodically brought up into the slot in the looper to sever the loops. In operation, the needle descends through the backing to bring a loop of wool into the path of the slotted looper 21 which is swung forwards by lever linkages from the shaft 4. The -knife 13, continuously rotated by the shafts 10, 7 and gears 8, 9, 11, 12 is then lifted by a lever 17 and cam 18, Fig. 2, to enter the slot in the looper to sever the loop. The gripper member 26 is then moved to engage the wool on the opposite side of the needle between itself and a fixed abutment 27, so as to hold the free end ready for the descent of the needle to lay the next loop. The gears 8, 9 have elongated teeth so that the up-and-down movements of the knife shaft do not disengage these gears.
Patent GB-1503965-A (GB)
Title: Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids
IPC: C07C241/00
Filed: 1975-05-23
Abstract: 1503965 Isocyanate preparation ATLANTIC RICHFIELD CO 23 May 1975 [13 June 1974] 22879/75 Heading C2C Isocyanates are prepared by thermally decomposing a carbamate having the formula R(NHCOOR<SP>1</SP>) x  where R is an optionally substituted benzene ring, R<SP>1</SP> is C 1  to C 3  alkyl and x is 1 or 2, the R<SP>1</SP> groups being the same or different when x is 2, at 230-290 C. in a continuous process in an inert solvent, higher boiling than the isocyanate, the total concentration of the carbamate and products therefrom being from 1 to 20 mole per cent, in the presence of an inert carrier agent having a b.p. below the isocyanate product, at a mole ratio of inert carrier to carbamate of at least 3 : 1, the isocyanate and corresponding alcohol being recovered as overhead products.
Patent GB-1146784-A (GB)
Title: Improvements in and relating to a superconductive coil
Inventor: LECOMTE JACQUES
IPC: H01F6/06
Filed: 1967-05-17
Abstract: 1,146,784. Superconductor coils. COMMISSARIAT A L'ENERGIE ATOMIQUE. 17 May, 1967 [25 May, 1966], No. 22946/67. Heading H1P. A superconductor coil is wound on a former having a central transverse disc with a radial slot so that the two sections of the coils are connected in series by passing the wire through the slot. As shown, Fig. 1, the former comprises a tube 1 and end plates 3 all covered with insulating layers 6, 4. A disc 7 of insulating material is arranged on the centre of the former and has a radial slot (10) extending from the periphery to the centre. A first layer of the coil is wound on to the left hand section A, the wire is passed through the slot in the disc, first and second layers are wound on the right hand section and the wire passed back through the slot to the left hand section where second and third layers are wound. This is repeated to provide the desired number of layers. Alternatively, a group of layers may be wound on to one section before passing the wire through the slot to the other section. The disc may have a bore extending from one point on the periphery to the diametrically opposite point through the thickness of the material to permit observation of an article placed at the centre of the coil inside the former. The superconductor wire may be of coppersheathed Nb-Zr.
Patent GB-713916-A (GB)
Title: Light amplifying cell
IPC: H01L31/14
Filed: 1952-09-12
Abstract: 713,916. Electro-luminescence. AMALGAMATED WIRELESS (AUSTRALASIA), Ltd. Sept. 12, 1952 [April 9, 1952], No. 22993/52. Class 39(1) [Also in Group XXXVI] A light amplifying cell for cathode ray tubes and television systems comprises superposed layers of photo-conductive and electro-luminescent substances located between transparent electrodes. A transparent supporting plate 11, e.g. of glass, carries a transparent conducting electrode 12, a thin layer of an electro-luminescent material 10, a thin layer of photo-conductive material. 13 and a second electrode of transparent conducting material 14 in that order. The relative position of plate 11 is unimportant and there may be two such plates one with each conducting layer. The conducting layers are connected to the terminals of an alternating voltage source, the magnitude and frequency of which determines the intensity and colour of the light emitted by the layer 10. The photo-conductor may be antimony trisulphide which has a saturation effect in the relation between photocurrent and illumination and may compensate the exponential relationship of the electro-luminescent material. An opaque conducting layer between layers 10, 13 prevents reaction between the layers, but it should have high lateral resistance e.g. it may be a mosaic of small metal islands. Controlled feed-back may be utilized to increase amplification. Selenium and cadmium sulphide are also suitable photo-conductive materials, and the electro-luminescent material may be a fired mixture of three parts zinc sulphide and one part zinc oxide activated by 0.75 per cent copper or lead. This phosphor mixed with nitro-cellulose gives greenishyellow at 50-60 cycles and blue luminescence at 2000 cycles of the applied alternating voltage which is between 25 volts and the breakdown voltage of the material.
Patent GB-1381149-A (GB)
Title: Manufacture of cyclohexanol from cyclohexene
IPC: C07C29/06
Filed: 1972-05-17
Abstract: 1381149 Preparation of cyclohexanol BADISCHE ANILIN- & SODA-FABRIK AG 17 May 1972 [18 May 1971] 23083/72 Heading C2C Cyclohexanol is produced in a continuous process from cyclohexene in two stages involving the addition of sulphuric acid in hydration in which the addition of sulphuric acid is carried out in the presence of ferrous sulphate. As illustrated in the flow diagram cyclohexene is passed through line 6 to the reactor 1, where it is caused to boil and the temperature is maintained at 82‹ C. by vapour cooling while a 60% sulphuric acid solution, heated at 110‹ C., is fed to the reactor through line 7 and thus added to the boiling cyclohexene. The sulphuric acid leaving the reactor is diluted with water to a concentration of 30% in a mixing line 8 and passes to a saponifying and stripping column 2 operating at atmospheric temperature and a temperature of 110‹ C. The concentrated sulphuric acid (60%) which collects at the base of this column is recycled to the absorption reactor 1 through line 9. The overheads leaving column 2 pass to a separator 3 operating at 20‹ C. and in which an aqueous phase containing 3% of cyclohexanol, which is used for the hydrolysis of the alkyl sulphate, and an organic phase comprising cyclohexene, cyclohexanol and traces of water are obtained, which is fed to a column 4 for the removal of cyclohexene and traces of water, residual water being removed by adding cyclohexene at the top of the column and in a second column 5, cyclohexanol is removed from the residue.
Patent GB-209389-A (GB)
Title: Improvements in the purification of brown coal wax
IPC: C10G73/00
Filed: 1923-09-14
Abstract: Crude brown-coal wax is purified by agitating at 80-100 DEG  C with a mixture of 10-20 lb. of concentrated nitric acid with 90-80 lb. of sulphuric acid, and after oxidation is completed raising the temperature until the resins are completely precipitated.  Paraffin wax may be added before the treatment with acids.  In an example 70 lb. of crude wax and 30 lb. of paraffin wax are heated together to 80 DEG  C., and a mixture of 11 lb. of concentrated nitric acid with 44 lb. of concentrated sulphuric acid is gradually added.  After the action is completed the temperature is raised to 200 DEG  C.
Patent GB-480336-A (GB)
Title: Manufacture of improved synthetic resinous materials
IPC: C08G63/54
Filed: 1936-08-21
Abstract: Resins are prepared by reacting at 170-240 DEG  C. phthalic acid or anhydride, drying or semi-drying oil fatty acids (which may be partly replaced by their glycerides), 2,5 to 7 per cent of maleic acid or anhydride, and 20-40 per cent of colophony (both calculated on the weight of fatty acid used, or on the weight of fatty acid plus glyceride when the latter is used), and a polyhydric alcohol (e.g. glycerol) in an amount not substantially exceeding 10 per cent more than required to esterify the acids present.  As fatty acids may be used linseed or chinawood oil acids or those obtained by dehydrating castor oil acids, e.g. as in Specification 306,452, [Class 2 (iii)], (which comprise mainly 9 : 11-octadecadiene-1-acid); soya bean or sunflower oil acids; these may be partly replaced by their glycerides, e.g. the oils themselves, oils obtained by dehydrating castor oil, or heat-polymerized oils, e.g. linseed stand oil.  Where the reaction mixture comprises 25-30 or 50-55 per cent of fatty ingredients, about 40 or 60 per cent respectively of the latter may be glycerides.  Coating compositions comprise the resins and solvents, e.g. xylene, high flash white spirit; other film-forming ingredients; driers, e.g. cobalt linoleate; plasticizers, softeners, and/or pigments.  In examples: phthalic anhydride and glycerol are heated with (1) linseed oil acids, tung oil, 3,85 per cent maleic acid, and 26,5 per cent of colophony at 185-190 DEG  C. in the presence of carbon dioxide; (2) soya bean acids and stand oil, 6,3 per cent maleic acid, and 25 per cent colophony, at 200-205 DEG  C. in the presence of carbon dioxide or nitrogen; (3), (4) dehydrated castor oil acids, 3,7 or 3,8 per cent maleic acid, and 25 or 27 per cent colophony, at 195-200 DEG  C. or 240 DEG  C. in the presence of carbon dioxide; (5), (6) soya bean acids and stand oil, 5,1 or 3,0 per cent maleic acid, and 38,5 or 20 per cent colophony, at 225-230 DEG  C. in the presence of carbon dioxide.  Specification 444,021 also is referred to.
Patent GB-973679-A (GB)
Title: High performance lubricant for 2-stroke engines
Filed: 1962-06-15
Abstract: 973,679. Lubricant and gasoline compositions. ESSO RESEARCH & ENGINEERING CO. June 15, 1962 [Aug. 4, 1961], No. 23098/62. Headings C5F and C5G. A lubricant composition for addition to gasoline for use in 2-stroke engines comprises a highly refined petroleum lubricating oil base stock, having a viscosity in the range 58-85 S.S.U. at 210‹ F., containing 1-6 % vol. of one or more defined ashless oil-soluble detergents and an alkyl or aryl halide lead scavenging agent (e.g. ethylene dibromide) which is present in sufficient quantity to provide 0.4-2 theories of scavenger on the basis of mixing 1 vol. of the lubricant with 10-40 vols. of a fuel containing 2-3 ml. of tetraethyl lead per U.S. gallon. The ashless detergent is selected from the following classes: (a) hydrocarbon-soluble ashless compounds containing polar nitrogen groups (e.g. amino, amido, imido, imidazolino and pyrrolidino), and of M.W. above 250; these compounds may also contain hydroxy and alkoxy groups; (b) polymeric dispersents of M.W. 500-50,000 made from one or more polar monomers (e.g. vinyl acetate, vinyl pyrrolidone, methacrylates, fumarates and maleates). Examples of these detergents are given. The compositions may also contain a conventional detergent, such as high alkalinity barium sulphonates, calcium sulphonates, alkaline earth metal alkyl phenates, and alkaline earth metal phenol sulphides. Other optional ingredients which perform their customary function are amines (e.g. phenyl α- naphthylamine), phenols (e.g. 2,6-di-tert.-butylp-cresol and 4,4<SP>1</SP>-methylene-bis(2,6-di-tert.-butyl phenol)), dimerized linoleic acid, molybdenum sulphide, and zinc dialkyldithiophosphate.
Patent GB-641339-A (GB)
Title: Electric lighting units of the lay-light type
IPC: F21Y101/00
Filed: 1948-09-03
Abstract: 641,339. Two-part couplings. BRITISH THOMSON - HOUSTON CO., Ltd., HULL, J. N., BELLCHAMBERS, H. E., and RUFF, H. R. Sept. 3, 1948, No. 23281. [Class 38 (i)] [Also in Group XI] A plugging contact device, for completing the electrical connection between a fluorescent lamp 4 and the supply circuit therefor when the casing 3 enclosing the lamp is assembled in a supporting framework 1, comprises an insulated blade 15 fixed to the cover 5 and having contacts 16, one on each side thereof, connected to the primary winding of the transformer 6 supplying the tubular fluorescent lamp 4, the contacts 16 being adapted to engage supply contacts 17. One of the latter contacts is spring-pressed towards the other so that when the casing 5 is detached from the framework 1 the two contacts engage, so that if a number of transformers 6 (each associated with a lamp 4) are connected in series, the series circuit is not broken when a fitting is removed for inspection or repair.
Patent GB-1492016-A (GB)
Title: Ion implantation apparatus
IPC: G01Q60/00
Filed: 1976-06-04
Abstract: 1492016 Ion implantation apparatus INTERNATIONAL BUSINESS MACHINES CORP 4 June 1976 [30 June 1975] 23290/76 Heading HID An ion implantation apparatus has an ion source 12 providing multiple ion beams which emerge from the concave surface of a source electrode 14 having apertures 15 therethrough, the multiple beams then passing through single apertured extracting and decelerating electrodes 16 and 18 before deflection and focusing at 10 on to a target 28. The holes 15 are arranged convergently as seen in Fig. 3 to compensate for the mutually repellent space charges of the ion beams.
Patent GB-1073252-A (GB)
Title: Cooling water systems
Inventor: DALTRY JOHN HAROLD
IPC: F28B9/08
Filed: 1964-06-05
Abstract: 1,073,252. Water cooling systems for steam condensers. ENGLISH ELECTRIC CO. Ltd. June 4, 1965 [June 5, 1964], No. 23335/64. Addition to 905,924. Heading BIB. [Also in Division F2] The water cooling system for cooling water condensate from a direct-contact spray condenser in several air heat exchange sectors 42 disclosed in the parent Specification is modified by providing the rotatable plug 12 of each plug valve 3 associated with a sector 42 with a diametric passageway 110 so that when the sector is out of use and is being emptied with the valve positioned as in Fig. 3 warm water from the condenser passes via port 8 and through the passageway 110 to port 5, and is returned to the sprays 101. Water is at the same time emptied from the sector through both pipes 46 and 49 and through ports 6 and 9 and ports 7 and 4 to drain tank 48.
Patent GB-1391821-A (GB)
Title: Method for preparing over based oil soluble compositions
Inventor: CEASE VINCENT J
IPC: C10M159/20
Filed: 1972-05-18
Abstract: 1391821 Overbased lubricant additives; lubricants CONTINENTAL OIL CO 18 May 1972 [7 June 1971] 23336/72 Headings C5F and C4X Overbased oil-soluble compositions are made by (i) neutralizing (to 90-100%) an oilsoluble sulphonic or carboxylic acid or phosphorus sulphide-treated olefin dispersant (mol. wt. 350-1000) with ammonium ions; (ii) heating to 25-80‹ C. and maintaining this temperature while adding a Ca or Mg alkoxide-carbonate complex in the presence of H 2 O in an amount not exceeding that required to hydrolyse the metal complex; (iii) removing volatiles by distilling and blowing with an inert gas (e.g. N 2  and/or CO 2 ), a non-volatile oil diluent being added at some point prior to removal of 25 wt. per cent of volatiles. Specified oils are pale oils, naphthenic oils, animal and vegetable oils. The water may be added prior to or during the addition of the complex and may be in the form of a C 3 -C 4  alkoxyethanol/H 2 O azeotrope. The complex may be added in admixture with an uncarbonated alkaline earth metal alkoxyethanol. The dispersant may be heated to 40-60‹ C. before adding the complex.
Patent GB-730484-A (GB)
Title: Improvements in or relating to hand ophthalmoscopes
IPC: A61B3/12
Filed: 1952-09-17
Abstract: 730,484. Sight-testing apparatus. KEELER, C. H. Sept. 16, 1953 [Sept. 17, 1952], No. 23392/52. Class 97 (1). A hand opthalmoscope comprises a handle containing an electric lamp bulb and a battery to direct a vertical light beam into a head mounted on the top of the handle and having a mirror arranged at substantially 45 degrees to the illuminating beam to reflect it into the patient's eye, light-transmitting means adjacent the mirror to direct light reflected from the eye past the mirror to a viewing aperture, polarizing means movable into the illuminating beam and an analyser mounted on an actuating member so as to be movable into or out of the beam reflected by the eye. As shown in Fig. 3, light from the lamp passes a condenser 14, an iris diaphragm 15 and a slit diaphragm 16 to reach the head 12. The diaphragm 16, Fig. 6, is formed of two plates 38, 39 slidable in a groove 37, the width of the slit 40 therebetween being varied by rotation of a plate 34 having curved slots 41, 42, engaging pins 43, 44 respectively .on the plates. Light emerging from this slit reaches a turret device 18, Eig. 4, rotatable to 'locate a circular strip 58, a negative lens 60 or stops 62, 63 in the beam before it reaches an objective 19. Light from the objective reaches a curved carrier 26 movable to locate therein a clear hole 69, a polarizing-screen 70, a negative lens 71 or a red-free filter 75. The light is then reflected by an inclined mirror 20, Fig. 3, through an aperture 21 to reach the patients eye, the light reflected thereby passing to the viewing aperture 23 by way of a transparent patch 22 in the mirror 20. Rotatable on a spigot 92, Fig. 3, is a turret 24 by which one of a number of lenses 81 may be located before the viewing aperture, a further series of lenses 90 being similarly mounted on a turret 25 rotatable about a spigot 91 being also movable before the' viewing aperture. The turret 24 also carries a number of apertures containing transparent material indicating the power of the lens 81 located over the viewing aperture, this indication being seen in a lens 88 by light diffusely reflected in the interior of the head by a transparent plate 84 inclined to the illuminating beam. Also rotatable on the spigot 92 is an arm 93 bearing an analyser 27 which, by rotation of the arm may be moved over or away from the viewing aperture. The aperture 21 is internally screw-threaded to receive a negative lens for the examination of highly myopic patients, a scleral illuminator of convergent funnel-like form carrying condensing lenses, or a cobalt blue filter for fluorescein examinations.
Patent GB-227488-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
IPC: G10K13/00
Filed: 1923-09-19
Abstract: 227,488. Kitchen, J. G. A. Sept. 19, 1923. Horns, arranging and supporting.-Relates to sound-reproducing ap paratus of the kind ir which sound is trans mitted from both sides of the diaphragm t< separate horns. In orde: to emphasise or bring out individually the higher pitched tones and the lower tones dissimilar expanding sound-emission pass ages, horns, or the like are associated with the sound-box, one such horn or passage being shorter and having a smaller mouth area than the other. In the construction shown in Fig. 2, the soundbox 9 has attached thereto on opposite sides tubes 3, 13, the tube 3 being connected to a tone-arm 2 which leads to a " bass " horn (not shown) within the cabinet, and the tube 13 being connected to a " tenor " horn 12. Means are provided for compensating for the weight of the horn 12 to avoid undue pressure of the stylus on the record. Fig. 3 shows a modification in which the smaller horn 12 passes into the larger horn 6, which in this case is external to the cabinet. The horn 6 is supported on trunnions 16 in a swivelling fork 17 which may be mounted on ball-bearings. A spring 22 is provided as shown to adjust the stylus pressure. The Provisional Specification refers to Specifications 132,408, 178,911, and 201,328, and also describes a modification in which two horns lying one outside the other are provided, the larger one having an extended neck passing through the back of an elbow bend in the small horn and returning outside the latter.
Patent GB-155385-A (GB)
Title: Improvements in the construction of concrete floors and roofs
IPC: E04B5/06
Filed: 1919-09-24
Abstract: 155,385. Clifton, W. E., and Ewart, J. S. Sept. 24, 1919. Floors of reinforcedconcrete girders side by side: roofs.-Floors and roofs are built up of a series of reinforced-concrete girders A of L- shape, one limb being longer than the other so that grouting spaces B, Fig. 1, are left when the members are laid in pairs as shown. For roofs, the members A may taper in depth lengthways to carry off rain. In the modification shown in Fig. 3, a floor or roof is formed by laying the girder members on their angles and with the sides equally inclined, and covering them with flat concrete slabs for floors, and with caps D for roofs. Fig. 4 shows another modification in which the long limbs overlap the short ones for the roof, but for the ceiling the members are all laid the same way and the joints are made good with cement E.